10.0  Operating Instructions
The spa control system has automatic functions that operate upon 
start-up and normal operation to protect the system. Upon power up, the 
readout displays the following information:
1.  Control panel displays current software release (5.59) 
then;
2.  Control panel displays “888” and all indicator LEDs are 
lit, permitting visual inspection of all display segments 
and indicator lights for proper operation.
3.  After the initial start-up sequence ends, the actual water 
temperature is displayed. If water temperature at this 
time is less then the factory default temperature setting 
of 100°F (38°C) and the spa is set to either standard ltration/heating 
mode (Sections 11.1-11.2, page 28), the heater will turn on and 
run until the water temperature rises to the factory setting, then turn 
off.
Note: It is common for the heater to turn on after the spa is rst lled 
because tap water is often very cold.
10.1  Setting Water Temperature
The spa’s thermostat provides optimum control of water 
temperature. The temperature set point (set temperature) can 
be adjusted from 65-104°F (18-40°C). To raise 
the set temperature, press the WARMER ( ) 
button. To lower the set temperature, press the 
COOLER ( ) button. The rst press of either 
WARMER ( ) or COOLER ( ) button 
displays the set temperature. To access the 
overtemp feature that allows the spa to reach 
106°F (41°C) follow the steps below (Figure 1). 
WARNING: RISK OF HYPERTHERMIA (OVER-HEATING) 
CAUSING SEVERE INJURY, BURNS, WELTS OR DEATH! 
Water temperature in excess of 104°F (40°C) may injurious to 
your health.
!
A.  Press and hold the WARMER (   ) button then;
B.  Press and hold the JETS 1 ( 
1
 ) button at the same time for 2 
seconds. You will see the temperature rise to 106°F (41°C) on the 
LED display. To lower the temperature, press the COOLER (   ) 
button.
C.  When the overtemp feature has been activated, the white decimal 
point after the last digit will ash on and off every second as an 
indicator for being in the overtemp mode.
Note: Once the temperature goes below 104°F (40°C) and you would 
like to raise the temperature to 106°F (41°C) again, you will have to 
repeat the steps above.
1
2
A
B
C
Figure 1
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